The Best Thai Coconut Soup

INGREDIENTS

• 1 tablespoon vegetable oil
• 2 tablespoons grated fresh ginger
• 1 stalk lemon grass, minced
• 2 teaspoons red curry paste
• 4 cups chicken broth
• 3 tablespoons fish sauce
• 1 tablespoon light brown sugar
• 3 (13.5 ounce) cans coconut milk
• 1/2 pound fresh shiitake mushrooms, sliced
• 1 pound medium shrimp - peeled and deveined
• 2 tablespoons fresh lime juice
• salt to taste
• 1/4 cup chopped fresh cilantro